Personnel: Joseph Halpern at Center for Human-Compatible AI (CHAI) (Faculty)

NoteThe record claims that Joseph Halpern holds a Faculty position at CHAI. The source text is a comprehensive personnel directory for CHAI that includes detailed listings of Faculty members (Stuart Russell, Pieter Abbeel, Anca Dragan, Bart Selman, Emma Pierson, Michael Wellman, Satinder Singh Baveja, Serina Chang, Tania Lombrozo, Tom Griffiths), Staff, Researchers, Research Fellows, and Alumni. Joseph Halpern does not appear in any of these sections. The absence of Joseph Halpern from this personnel directory does not definitively contradict the claim (he could have been added after this directory was created, or this could be an incomplete listing), but the source does not confirm the claim either. Therefore, the verdict is 'unverifiable' rather than 'contradicted'.